CN102184576B - Vehicle-mounted unit of 5.8 GHz electronic toll collection system - Google Patents
Vehicle-mounted unit of 5.8 GHz electronic toll collection system Download PDFInfo
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- CN102184576B CN102184576B CN201110056476.3A CN201110056476A CN102184576B CN 102184576 B CN102184576 B CN 102184576B CN 201110056476 A CN201110056476 A CN 201110056476A CN 102184576 B CN102184576 B CN 102184576B
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Abstract
The invention discloses a vehicle-mounted unit of a 5.8 GHz electronic toll collection (ETC) system, comprising a primary processor unit, a 5.8 GHz wireless communication module, an IC (integrated circuit) card interactive module, an information displaying module, a power management module, a JTAG (joint test action group) debugging interface and an anti-dissembling module, wherein the 5.8 GHz wireless communication module is connected with the primary processor unit to realize DSRC (dedicated short range communications) short distance wireless communication which meets the Chinese national standards of the ETC; the IC card interactive module carries a double-interface CPU (central processing unit) card and can be compatible with an artificial semi-automatic charging way; and the power management module utilizes a solar battery to charge a lithium battery. The 5.8 GHz wireless communication module of the vehicle-mounted unit receives arousal signals and data which are transmitted from a RSU (rate-sensor unit) and sends to the primary processor unit; and the primary processor unit reads and writes the double-interface CPU card according to the received data and transmits vehicle/trade information to the RSU, so as to realize electronic toll collection.
Description
Technical field
The present invention relates to a kind of board units of 5.8GHz electronic charging system without parking.
Background technology
At present, all highways of China all need to pay current, and charge method mainly contains manual toll collection and artificial semi automatic toll.Yet, be accompanied by the sustainable growth of Fast Construction and the volume of traffic of national freeway net, traditional Expressway Toll Methods cannot meet the needs of expressway tol lcollection management, the problem that manual toll collection and artificial semi automatic toll bring is also more and more outstanding, be mainly manifested in following some:
1. the current certificate of entrance granting, exports and reclaims current certificate, and vehicle need to stop twice, causes road decrease in efficiency, and the traffic efficiency of charge station becomes the bottleneck of restriction road improved efficiency, and the situation of charge station's congested with cars has all appearred in many sections.
2. there is the problem that standard differs in artificial cognition vehicle.In earned rates work, often occur that the actual tonnage of vehicle and driving license indicate the situation that tonnage is not inconsistent, only, with artificial cognition vehicle, tonnage, there is larger difference, thereby cause expenses standard disunity, often cause on-the-spot dispute.
3. there is drawback in money transaction.Money transaction speed is slow, causes vehicle pass-through speed to improve; Easy appearance corruption cheating in fee collection, causes the problems such as ticket fee loss, financial management confusion.
4. capital cost and human cost are higher.Due to traditional charge method, need to build huge toll plaza and charge station's facility at expressway entrance and exit, capital cost is higher.And needing the artificial charging process that participates in, human cost cannot be saved.
5. be unfavorable for the propelling of highway networked fee collection and Expressway Informationization management.
The problems referred to above that exist in order to solve traditional charge method, electric non-stop toll (ETC) has become the highway toll mode that China widelys popularize.ETC system is mainly to utilize roadside unit (RSU) and board units (OBU) to intercom mutually and message exchange, to reach the automatic identification to vehicle, and automatically from the specified account of vehicle user, deducts toll, thereby realizes automatic charging.At present, between OBU and RSU, the main microwave communication technology that adopts is carried out wireless short-distance message exchange, and the communications band that ETC system is used in the world mainly contains three kinds: 915MHz, 2.4GHz, 5.8GHz.Wherein 915MHz and 2.4GHz frequency range have widespread use at other fields such as mobile communication, medical treatment, scientific researches, and its frequency contention is serious, so ground unrest is larger, and there is no effective security mechanism, and communication capacity is also lower.In the existing ETC system applies of China, three kinds of communications bands are also deposited.In view of Dedicated Short Range Communications, (DSRC) consensus standard development trend and domestic ETC system applies present situation, the ETC & DSRC CNS GB/T20851-2007 that implement in May, 2007 and the < < turn pike networked fee collection technical requirement > > of national communication in October, 2007 cloth promulgated by the ministries or commissions of the Central Government, stipulated that the junction service frequency range of China ETC system is 5.8GHz.
Mainly containing of the domestic 5.8GHz of providing electronic tag: Guangzhou Etta Si company, Guangdong Xin Yue company.But, due to the starting of these companies early, the 5.8GHz electronic tag of its production is technically and not in full conformity with the regulation in China ETC & DSRC CNS.In prior art, also there is not the board units of the 5.8GHz electronic charging system without parking for road toll that meets national DSRC standard.
Summary of the invention
Goal of the invention: the object of the invention is to the problem for above-mentioned existence, a kind of board units that meets the 5.8GHz electronic charging system without parking for road toll of national DSRC standard is provided, effectively to solve the problem of vehicle identification in 5.8GHz electronic charging system without parking, nothing stop automatic fee aspect, its cost of investment is low, cost performance is high, real-time is good, safe and reliable, operation and maintenance convenient.
Technical scheme: the board units of 5.8GHz electronic charging system without parking of the present invention, is characterized in that: comprise main processor unit, 5.8GHz wireless communication module, IC-card interactive module, information display module, power management module, JTAG debugging interface and Anti-dismantling module;
Described main processor unit and the communication connection of described 5.8GHz wireless communication module, judge, and two interface C PU cards read and write by IC-card interface unit according to judged result for charge data, the order that 5.8GHz wireless communication module is received; Described main processor unit also communicates to connect with described information display module, for charge Transaction Information is sent to information display module, shows;
Described 5.8GHz wireless communication module is connected with main processor unit with external interrupt interface by synchronous serial interface, for realizing the short-distance wireless communication that meets CNS DSRC agreement and modulation /demodulation and the encoding and decoding that realize communication data;
Described IC-card interactive module comprises IC-card interface unit and ESAM unit, and described IC-card interactive module is connected with main processor unit by general purpose I/O port, and work clock is provided by main processor unit; Described IC-card interactive module is connected with main processor unit for realizing the data circulation between two interface C PU cards and main processor unit by general purpose I/O port;
Described information display module is connected with main processor unit by general purpose I/O port, for showing charge Transaction Information;
Described power management module comprises solar recharging administrative unit for the voltage monitoring of chargeable lithium cell and Charge Management, for chargeable lithium cell output voltage being converted to voltage conversion unit and the chargeable lithium cell of the required operating voltage of board units; Described power management module provides energy for main processor unit, 5.8GHz wireless communication module, IC-card interactive module and information display module;
Described Anti-dismantling module is connected with described Main Processor Unit signal, for monitoring car carrier unit, whether illegally dismantled, when board units suffers illegal dismounting, this module will send a look-at-me to Main Processor Unit, and Main Processor Unit is processed look-at-me according to control program.
The present invention can also further adopt following technical measures:
Main processor unit is selected 16 low-power consumption microcontroller MSP430F149 of technical grade, 5.8GHz wireless communication module selection work in 5.8GHz frequency range, meet the technical grade short-distance wireless communication chip BK5822 of Chinese ETC standard GB/T 20851.1-2007 and GB/T 20851.2-2007.
5.8GHz wireless communication module is realized DSRC agreement, and physical layer link parameter meets ETC CNS GB/T20851-2007.
Information display module is comprised of 8 rank serial shift register chips " U6 ", " U7 ", " U8 ", " U9 " and charactron " DS1 ", " DS2 ", " DS3 ", " DS4 ".
Power management module comprises solar recharging administrative unit, and this unit, when monitoring lithium battery voltage deficiency, utilizes the energy that solar cell provides to charge to lithium battery.
5.8GHz wireless communication module receives wake-up signal or the data that RSU sends, and after completing to RSU transmission data, capital produces look-at-me to main processor unit, main processor unit is differentiated look-at-me, according to differentiating result, carries out the configuration of data processing and wireless communication module.
After 5.8GHz wireless communication module receives the wake-up signal that RSU sends and to sending look-at-me as main processor unit, main processor unit is read the data in two interface C PU cards and is utilized 5.8GHz wireless communication module to send to RSU by IC-card interactive module; Order and Data Concurrent that 5.8GHz wireless communication module reception RSU sends send look-at-me to main processor unit, main processor unit is upgraded the data in two interface C PU cards according to the data of receiving or order by IC-card interactive module, data message is sent to information display module simultaneously and shows; After completing vehicle toll, main processor unit, 5.8GHz wireless communication module, IC-card interactive module and information display module all enter dormant state.
Beneficial effect: compared with prior art, its beneficial effect is in the present invention:
1) the present invention is systematically studying on the basis of 5.8GHz no-stop charging system, designed and developed a kind of board units of 5.8GHz electronic charging system without parking, with efficient solution never in stopping charging system 5.8GHz short-distance wireless communication and moving vehicle do not stop and realize the problem of charge, and its cost of investment is low, cost performance is high, real-time is good, safe and reliable, operation and maintenance convenient.
2) board units of the present invention can carry two interface C PU cards, can realize the compatibility with existing artificial semi automatic toll mode.
3) in 5.8GHz wireless communication module of the present invention, adopt single-chip wireless receiving and dispatching solution, than separating component scheme, there is higher stability and reliability, and cost is lower, volume is less.
4) the present invention is in power management module, and chargeable lithium cell adopts solar recharging Managed Solution, when the energy content of battery is not enough, can automatically charge, and environmental protection and energy saving and non-maintaining for a long time.
5) board units that the present invention announces has anti-disassembling function, once illegally be dismantled, the zone bit in board units in corresponding information memory block can change.
6) the present invention, owing to having adopted practicable design in design, when fully taking into account it and installing in actual applications applicability, reduces its cost as far as possible.Because factors such as considering anti-interference and cost is separated the 5.8GHz radio receiving transmitting module coupling part making, the connecting portion of each several part power supply interface grades, also notice its fastness, before deployment, weld, and note the sealing of pad, its device can normally be worked in the environment such as humidity, dust, and the phenomenons such as burn into line short or leak current fault can not occur.
7) the present invention, because the operating temperature range of each components and parts that adopt is large, makes its device-25 ℃ to+70 ℃ normal work, can make like this present invention be suitable for overwhelming majority of countries and the area in the world.
8) the present invention is owing to having above 5), 6) described in feature, can resist the high humidity of common intensity, high low temperature, dust storm, shock and corrosion etc., greatly strengthened the adaptive faculty of its device under rugged surroundings.
9) each module of the present invention all has power consumption control function, in the situation that not having wake-up signal to occur, all in dormant state, effectively reduces power consumption.
Accompanying drawing explanation
Fig. 1 is the board units the general frame of 5.8GHz electronic charging system without parking of the present invention.
Fig. 2 is the schematic diagram of board units main processor unit (1), JTAG debugging interface (6) and the Anti-dismantling module (7) of 5.8GHz electronic charging system without parking of the present invention.
Fig. 3 is board units 5.8GHz wireless communication module (2) schematic diagram of 5.8GHz electronic charging system without parking of the present invention.
Fig. 4 is board units IC-card interactive module (3) schematic diagram of 5.8GHz electronic charging system without parking of the present invention.
Fig. 5 is board units information display module (4) schematic diagram of 5.8GHz electronic charging system without parking of the present invention.
Fig. 6 is board units power management module (5) schematic diagram of 5.8GHz electronic charging system without parking of the present invention.
Fig. 7 is the workflow diagram that the middle microprocessor chip U1 of the board units main processor unit (1) of 5.8GHz electronic charging system without parking of the present invention processes 5.8GHz wireless data communications.
Fig. 8 is the workflow diagram that the middle microprocessor chip U1 of the board units main processor unit (1) of 5.8GHz electronic charging system without parking of the present invention realizes vehicle toll.
Embodiment
Below in conjunction with accompanying drawing, technical solution of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
The board units of the 5.8GHz electronic charging system without parking for road toll of the present invention comprises main processor unit 1,5.8GHz wireless communication module 2, IC-card interactive module 3, information display module 4, power management module 5, JTAG debugging interface 6 and Anti-dismantling module 7, and its principle of work is as follows:
Main processor unit 1 is comprised of microprocessor chip U1 and peripheral circuit thereof.Its main settling signal control, data processing, protocol communication and algorithm process are responsible for coordinating the normal operation of each module simultaneously.
5.8GHz wireless communication module 2 is mainly comprised of rf chip U2, radio-frequency (RF) switch chip U46, U47 and other peripheral circuits.Rf chip U2 is the technical grade short-distance wireless communication chip that is operated in 5.8GHz frequency range, meets Chinese ETC standard GB/T 208512007.The data-signal of 5.8GHz wireless communication module 2 " GPIO3_MCU, MOSI_MCU, MISO_MCU, SCK_MCU, CSN_MCU, CE_MCU, IRQ_MCU, WKO_MCU " is connected with synchronous serial port, external interrupt port, the general purpose I/O port of microprocessor chip U1 by connectivity port J41, and the control signal of 5.8GHz wireless communication module 2 " RX_ON_MCU, TX_ON_MCU, RX_R_ON MCU, RX_W_ON_MCU " is connected with general purpose I/O port of microprocessor chip U1 by connectivity port J42.Antenna adopts PCB printed antenna.5.8GHz wireless communication module 2 is mainly used in realizing the short-distance wireless communication that meets CNS DSRC agreement, and the modulation /demodulation of communication data and encoding and decoding are all by its realization.
IC-card interactive module 3 is mainly comprised of IC-card socket J3, ESAM security control chip U3, triode Q1 and other peripheral circuits, the clock signal of this module " IC_CLK " is provided after Sheffer stroke gate chip U14 drives by microprocessor chip U1 " SMCLK ", IC-card inserts detection signal " IC_SW " and is connected with the external interrupt port of microprocessor chip U1, and other signals are connected with general purpose I/O port of U1.IC-card interactive module 3 is for realizing the data circulation between two interface C PU cards and main processor unit 1.
JTAG debugging interface 6 is comprised of connectivity port J4 and peripheral circuit thereof, and the data line of J4 is connected with the jtag interface of microprocessor chip U1, " TCK, TMS, TDO, TDI " pin interconnection between them.It is as the interface that the inner FLASH of microprocessor chip U1 is programmed, and controls the debugging interface of U1 operational scheme from hardware.
Anti-dismantling module 7 is mainly comprised of normally closed microswitch S2 and peripheral circuit thereof, S2 is connected with the external interrupt port of microprocessor chip U1, S2 disconnects under normal circumstances, when board units is dismantled, S2 is closed, the interrupt pin level of U1 changes to produce and interrupts, and processes interrupting according to control program.
Embodiment 1:
Above-mentioned main processor unit 1, JTAG debugging interface 6 and Anti-dismantling module 7 are shown in Fig. 2.
Microprocessor chip U1 in main processor unit 1 selects the high-grade microprocessor MSP430F149 in high-performance, low-power consumption MSP43016 position of TI company.It has adopted reduced instruction set computer risc architecture, has abundant addressing mode, succinct core instructions and a large amount of dummy instructions, and in a large amount of registers and sheet, data-carrier store all can be participated in multiple computing, the processing instruction of tabling look-up efficiently in addition; Under 8MHz crystal-driven, can realize the 125ns instruction cycle, there is abundant peripheral hardware, interruption and I/O resource simultaneously; Have 5 clock low power consumption patterns, under low-power consumption mode, system lowest power consumption can be reduced to uA level, and all interruptions can wake system up from low-power consumption mode, and wakeup time only needs 6us; There is the jtag interface with IEEE 1149.1 operating suchs.
In JTAG debugging interface 6, " 1,3,5,7,11 " pin of connectivity port J4 is connected with " 54,55,56,57,58 " pin of microprocessor chip U1 respectively.
In Anti-dismantling module 7, " 1 " pin of normally closed microswitch S2 is connected with " 20 " pin of microprocessor chip U1 after drawing on resistance " R6 ".
5.8GHz wireless communication module 2 is shown in Fig. 3.Rf chip U2 in 5.8GHz wireless communication module 2 selects Botong company to produce BK5822.It meets ETC CNS GB/T20851-2007; Adopt ASK modulation, FM0 encoding and decoding; Receiving sensitivity-60dBm, wakes sensitivity-42dBm up; Low suppling voltage 2.6V～3.6V; Sleep current 13uA, extremely low power dissipation; Be operated in 5.8GHz frequency range." 22,20,19,18,17,16,15,14 " pin of U2 is connected with " 44,45,46,47,43,42,18,19 " pin of U1 respectively by connectivity port J41 after resistance " R31, R33, R36～R41 ".The HWS468 gallium arsenide single-pole double-throw switch (SPDT) that radio-frequency (RF) switch chip U46, U47 select HEXAWAVE company to produce, HWS468 is applicable to the application scenario of DC～6GHz, only has the insertion loss of 0.8dB at 5.8GHz, and switching time, 30ns, and had extremely low power consumption." 4,6 " pin of " 4, the 6 " pin of U46 and U47 is connected with " 41,40,39,38 " pin of U1 respectively by connectivity port J42 after resistance " R42, R43, R45, R44 ".
IC-card interactive module 3 is shown in Fig. 4.ESAM security control chip U3 in ESAM unit 3-2 selects the general ESAM chip of Broadstar company exploitation, and it supports that standard DES and triple des algorithm also can be according to the automatic selection algorithms of key degree; Support comprises file and the protection of cipher key operation communication line of plaintext, ciphertext, encryption and tri-kinds of modes of MAC; Support main working key function, the key that can disperse subscriber card authenticates; Support plaintext, ciphertext, encryption and tri-kinds of keys of MAC to install and update mode; Operating voltage: 2.7V～5.5V; Wait for while receiving order and enter dormant state, maximum current is 100uA, and " 3,7 " pin of U3 is connected with " 37,36 " pin of microprocessor chip U1, and " 6 " pin of U3 is connected with " 3 " pin of Sheffer stroke gate chip U14.The 74HC00 chip that Sheffer stroke gate chip U14 adopts NXP company to produce, it has 42 input nand gates, operating voltage: 2.0V～6.0V." 1,2,4 " pin of U14 is connected with " 49,23 " pin of microprocessor chip U1, and " 9,10 " pin is connected with " 10 " pin of J3, and " 6 " pin is connected with the base stage of triode Q1 by resistance " R39 ".Triode Q1 adopts general semiconductor device 8550.IC-card socket J3 in IC-card interface unit 3-1 adopts ISO7816 standard size contact type socket, and " 7,2 " pin of J3 is connected with " 21,22 " pin of microprocessor chip U1, and " 3 " pin is connected with " 3 " pin of U14.
Information display module 4 is shown in Fig. 5.The 74HC595 chip that 8 rank serial shift register chip U6～U9 adopts NXP company to produce, it is a high-speed cmos type 8 rank serial shift registers, with storage register and ternary output, shift register and storage register adopt respectively independent clock; Storage register is with 8 tristate bus line driver outputs.The mutual cascade of U6～U9, " 9 " pin of U9 is connected with " 14 " pin of U8, " 9 " pin of U8 is connected with " 14 " pin of U7, " 9 " pin of U7 is connected with " 14 " pin of U6, " 14 " pin of U9 is connected with " 2 " pin of microprocessor chip U1, in parallel being connected with " 5 " pin of U1 of " 11 " pin of U6, U7, U8, U9 simultaneously, in parallel being connected with " 4 " pin of U1 of " 12 " pin of U6, U7, U8, U9 simultaneously, in parallel being connected with " 3 " pin of U1 of " 13 " pin of U6, U7, U8, U9 simultaneously; " 1～7 " pin of U6 is connected with " 7～1 " pin of DS1 through current-limiting resistance " R9～R15 ", " 1～7 " pin of U7 is connected with " 7～1 " pin of DS2 through current-limiting resistance " R16～R22 ", " 1～7 " pin of U8 is connected with " 7～1 " pin of DS3 through current-limiting resistance " R23～R28, R30 ", and " 1～7 " pin of U9 is connected with " 7～1 " pin of DS4 through current-limiting resistance " R31～R37 ".
The temperature range of selected chip is as follows above: microprocessor chip U1 is-40 ℃ to+85 ℃; Rf chip U2 is-40 ℃ to+85 ℃; In IC-card interactive module 3, ESAM security control chip U3 is-25 ℃ to+70 ℃, and Sheffer stroke gate chip U14 is-40 ℃ to+85 ℃; Shift register chip U6～U9 is-40 ℃ to+85 ℃; In solar recharging administrative unit 5-1, lithium cell charging managing chip U4 is-40 ℃ to+85 ℃; In voltage conversion unit 5-2, voltage stabilizer U5 chip is-40 ℃ to+125 ℃ °.This makes whole board units can be operated in-25 ℃ in the environment of+70 ℃, meets the requirement to OBU operating ambient temperature in Chinese < < turn pike networked fee collection technical requirement > >.
Embodiment 2:
According to the selected chip of embodiment 1 and connected mode, in main processor unit 1, as shown in Figure 7, it comprises the workflow of microprocessor chip U1 processing 5.8GHz wireless data communications:
Step 1 enters after IRQ interrupt handling routine, closes IRQ and interrupts enabling.
(1) if wake-up interrupts zone bit is effective, remove wake-up interrupts zone bit, proceed to step 3.
(2) effective if be sent completely interrupt flag bit, clear to send completes interrupt flag bit, proceeds to step 3.
(3) effective if finish receiving interrupt flag bit, remove and finish receiving interrupt flag bit, read the data in RX_FIFO register in rf chip U2, proceed to step 4.
(4) if above-mentioned three interrupt flag bits are all invalid, receive mistake, remove and receive error flag position, carry out mistake and process, proceed to step 4.
(1) if this vehicle toll has been concluded the business, configure rf chip U2 and enter sleep pattern, the IRQ that opens microprocessor U1 interrupts enabling, and then interrupts returning.
(2) if this vehicle toll has been concluded the business, the IRQ that opens microprocessor U1 interrupts enabling, and then interrupts returning.
Embodiment 3:
According to the selected chip of embodiment 1 and connected mode, as shown in Figure 8, it comprises the workflow that in main processor unit 1, microprocessor chip U1 realizes vehicle toll:
Step 1 zero clearing transaction complement mark position, proceeds to step 2.
(1) if CPU card state is normal, proceed to step 3.
(2) if CPU card abnormal state shows that information indicating user inserts effective CPU card, returns to step 2.
(1) receive RSU order, if it is not overtime to receive RSU order, proceed to step 4.
(2) if receive command timeout, proceed to step 10.
Interpretation is carried out in the RSU order that step 4 pair receives
(1) if reading system/vehicle/transaction record message command proceeds to step 5.
(2) if receive transaction record order, receive transaction record data, proceed to step 7.
(3), if concluded the business order, set transaction complement mark position, proceeds to step 11.
(4) if Fail Transaction order proceeds to step 10.
(1), if information reads failure, the read message frequency of failure adds 1, proceeds to step 6.
(2), if information reads successfully, zero clearing read message fail counter, sends to RSU by the information reading, and proceeds to step 11.
Step 6
(1) if the read message frequency of failure does not surpass maximum times restriction, return to step 5.
(2) if the read message frequency of failure surpasses maximum times restriction, set information reads failure flags position, and transmission information reads failure command to RSU, proceeds to step 11.
Step 7
(1) if need to deduct fees, carry out the fee deduction treatment of stored value card, proceed to step 8.
(2) if do not need to deduct fees, proceed to step 9.
Step 8
(1) if deducted fees successfully, proceed to step 9.
(2) if deducted fees unsuccessfully, send and deduct fees failure command to RSU, proceed to step 11.
Step 9 is upgraded transaction record file, sends Transaction Success instruction to RSU, and information display module shows CPU card account balance, starts displaying time control timer, proceeds to step 11.
Step 10 set Fail Transaction sign, information display module prompting Fail Transaction, starts displaying time control timer, and system enters dormant state.
Step 11
(1) if concluded the business, return to step 3.
(2) if concluded the business, system enters dormant state.
As mentioned above, although represented and explained the present invention with reference to specific preferred embodiment, it shall not be construed as the restriction to the present invention self.Not departing under the spirit and scope of the present invention prerequisite of claims definition, can make in the form and details various variations to it.
Claims (3)
1. a board units for 5.8GHz electronic charging system without parking, is characterized in that: comprise main processor unit (1), 5.8GHz wireless communication module (2), IC-card interactive module (3), information display module (4), power management module (5), JTAG debugging interface (6) and Anti-dismantling module (7);
Described main processor unit (1) and described 5.8GHz wireless communication module (2) communication connection, for charge data, the order that 5.8GHz wireless communication module (2) is received, judge, and two interface C PU cards are read and write by IC-card interface unit (3-1) according to judged result; Described main processor unit (1) also communicates to connect with described information display module (4), for charge Transaction Information being sent to information display module (4), shows; Described main processor unit (1) is selected 16 low-power consumption microcontroller MSP430F149 of technical grade, microprocessor chip U1 and peripheral circuit thereof, consists of;
Described 5.8GHz wireless communication module (2) is connected with main processor unit (1) with external interrupt interface by synchronous serial interface, for realizing the short-distance wireless communication that meets CNS DSRC agreement and modulation /demodulation and the encoding and decoding that realize communication data; Described 5.8GHz wireless communication module (2) adopts and is operated in 5.8GHz frequency range, meets the technical grade short-distance wireless communication chip BK5822 of Chinese ETC standard GB/T20851.1-2007 and GB/T20851.2-2007, mainly rf chip U2, radio-frequency (RF) switch chip U46, U47 and peripheral circuit thereof, consists of; Described 5.8GHz wireless communication module (2) is realized DSRC agreement, and physical layer link parameter meets ETC CNS GB/T20851-2007;
Described IC-card interactive module (3) is connected with main processor unit (1) by general purpose I/O port, and work clock is provided by main processor unit (1); Described IC-card interactive module (3) is connected with main processor unit (1) by general purpose I/O port for realizing the data circulation between two interface C PU cards and main processor unit (1); Described IC-card interactive module (3) is mainly comprised of IC-card socket J3, ESAM security control chip U3, triode Q1 and peripheral circuit thereof, the clock signal of this module " IC_CLK " is provided after Sheffer stroke gate chip U14 drives by microprocessor chip U1 " SMCLK ", IC-card inserts detection signal " IC_SW " and is connected with the external interrupt port of microprocessor chip U1, and other signals are connected with general purpose I/O port of microprocessor chip U1;
Described information display module (4) is connected with main processor unit (1) by general purpose I/O port, for showing charge Transaction Information; Described information display module (4) is comprised of 8 rank serial shift register chips " U6 ", " U7 ", " U8 ", " U9 " and charactron " DS1 ", " DS2 ", " DS3 ", " DS4 ", and the data-signal of this module " DIS_DATA, DIS_ST, DIS_SH " is connected with general purpose I/O port of microprocessor chip U1 with control signal " DIS_OE ";
Described power management module (5) is that main processor unit (1), 5.8GHz wireless communication module (2), IC-card interactive module (3) and information display module (4) provide energy; Described power management module (5) is mainly comprised of solar cell BT1_Sloar, lithium cell charging managing chip U4, voltage transitions chip U5, chargeable lithium cell BT2 and peripheral circuit thereof; The output voltage of lithium cell charging managing chip U4 Real-Time Monitoring chargeable lithium cell BT2, when chargeable lithium cell BT2 brownout, lithium cell charging managing chip U4 utilizes the energy that solar cell BT1_Sloar provides to charge to chargeable lithium cell BT2; The output voltage of chargeable lithium cell BT2 is converted to VCC_3.3V for other all module for power supply except power module through voltage transitions chip U5;
JTAG debugging interface (6) is comprised of connectivity port J4 and peripheral circuit thereof, and the data line of connectivity port J4 is connected with the jtag interface of microprocessor chip U1, " TCK, TMS, TDO, TDI " pin interconnection between them; It is as the interface that the inner FLASH of microprocessor chip U1 is programmed, and controls the debugging interface of microprocessor chip U1 operational scheme from hardware;
Described Anti-dismantling module (7) is connected with described Main Processor Unit (1) signal, for monitoring car carrier unit, whether illegally dismantled, when board units suffers illegal dismounting, this module will send a look-at-me to Main Processor Unit (1), and Main Processor Unit (1) is processed look-at-me according to control program.
2. the board units of 5.8GHz electronic charging system without parking according to claim 1, it is characterized in that: described 5.8GHz wireless communication module (2) receives wake-up signal or the data that RSU sends, and after completing to RSU transmission data, capital produces look-at-me to main processor unit (1), main processor unit (1) is differentiated look-at-me, according to differentiating result, carries out the configuration of data processing and 5.8GHz wireless communication module (2).
3. the board units of 5.8GHz electronic charging system without parking according to claim 1, it is characterized in that: after described 5.8GHz wireless communication module (2) receives the wake-up signal that RSU sends and send look-at-me to main processor unit (1), main processor unit (1) is read the data in two interface C PU cards and utilized 5.8GHz wireless communication module (2) to send to RSU by IC-card interactive module (3); Order and Data Concurrent that 5.8GHz wireless communication module (2) reception RSU sends send look-at-me to main processor unit (1), main processor unit (1) is upgraded the data in two interface C PU cards according to the data of receiving or order by IC-card interactive module (3), data message is sent to information display module (4) simultaneously and shows; After completing vehicle toll, main processor unit (1), 5.8GHz wireless communication module (2), IC-card interactive module (3) and information display module (4) all enter dormant state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110056476.3A CN102184576B (en) | 2011-03-09 | 2011-03-09 | Vehicle-mounted unit of 5.8 GHz electronic toll collection system |
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| CN201110056476.3A CN102184576B (en) | 2011-03-09 | 2011-03-09 | Vehicle-mounted unit of 5.8 GHz electronic toll collection system |
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| CN102184576A CN102184576A (en) | 2011-09-14 |
| CN102184576B true CN102184576B (en) | 2014-04-02 |
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| CN102693560A (en) * | 2012-05-17 | 2012-09-26 | 上海搜林信息技术有限公司 | Recording method and device for trading process of electronic toll collection |
| CN103630375B (en) * | 2012-08-27 | 2017-06-23 | 深圳市金溢科技股份有限公司 | A kind of method for diagnosing faults of board units, board units and system |
| CN102881052B (en) * | 2012-09-24 | 2016-07-13 | 深圳市迅朗科技有限公司 | A kind of roadside device with solar energy acquisition mechanism |
| CN103793948A (en) * | 2013-02-01 | 2014-05-14 | 深圳市金溢科技有限公司 | Vehicle terminal, internal interconnection realization method, remote monitoring method and system thereof |
| CN103218638B (en) * | 2013-04-16 | 2016-12-28 | 连云港贝兹乐信息科技有限公司 | A kind of method that MCU of utilization and double interface C PU realize the transmission of different radio frequency data |
| CN103258353A (en) * | 2013-05-02 | 2013-08-21 | 无锡昶达信息技术有限公司 | Non-stop electronic toll collection system radio frequency receiving and sending module |
| CN103258354A (en) * | 2013-05-02 | 2013-08-21 | 无锡昶达信息技术有限公司 | Vehicle-mounted device for expressway non-stop electronic toll collection system |
| CN103778674B (en) * | 2013-11-22 | 2016-04-27 | 深圳市金溢科技股份有限公司 | A kind of automotive sunshade panel for intelligent transportation, automobile and electronic tag |
| CN104574541B (en) * | 2014-12-26 | 2017-01-18 | 深圳市金溢科技股份有限公司 | Method and system for synchronizing time sequence of RSUs and multiple antennae |
| CN105262245A (en) * | 2015-11-11 | 2016-01-20 | 苏州博恩特智能科技有限公司 | Passive intelligent IC card capable of carrying out wireless charging and charging method thereof |
| CN105551097B (en) * | 2015-12-09 | 2019-08-23 | 深圳市金溢科技股份有限公司 | A kind of on board unit, vehicle positioning method and path identification method |
| CN105553645A (en) * | 2015-12-17 | 2016-05-04 | 国家电网公司 | Data protection system and data acquisition method of charging facility |
| CN105551102A (en) * | 2016-02-17 | 2016-05-04 | 钱怀风 | ETC composite vehicle-mounted unit with route recognizing function |
| WO2019019021A1 (en) * | 2017-07-25 | 2019-01-31 | 广东兴达顺科技有限公司 | Non-stop toll collection method and system |
| CN109842865B (en) * | 2017-11-29 | 2021-12-07 | 北京聚利科技有限公司 | Anti-disassembly method of vehicle-mounted wireless terminal, vehicle-mounted wireless terminal and communication equipment |
| CN109584390B (en) * | 2018-11-26 | 2021-04-27 | 东南大学 | Highway charging system based on little service |
| CN109961527A (en) * | 2019-04-22 | 2019-07-02 | 广州市埃特斯通讯设备有限公司 | A kind of on board unit system |
| CN110796751A (en) * | 2019-08-23 | 2020-02-14 | 新大陆数字技术股份有限公司 | Vehicle-mounted unit for preventing brush stealing, ETC system and method for preventing brush stealing of vehicle-mounted unit |
| CN112150649B (en) * | 2020-09-02 | 2022-12-16 | 北京易路行技术有限公司 | Expressway portal system charging method and device |
| CN112040445B (en) * | 2020-09-08 | 2023-07-04 | 广州市埃特斯通讯设备有限公司 | Detection method of detection system of OBU in ETC |
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